Throw InvalidOperationException if AppLinkEntry.Thumbnail source is i…

…nvalid (xamarin#299)
JoonghyunCho · Sep 1, 2016 · 6b7a1df · 6b7a1df
1 parent 3ca3c6d
commit 6b7a1df
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/Xamarin.Forms.Platform.iOS/iOSAppLinks.cs b/Xamarin.Forms.Platform.iOS/iOSAppLinks.cs
@@ -126,13 +126,17 @@ static async Task<CSSearchableItemAttributeSet> GetAttributeSet(IAppLinkEntry de
 				try
 				{
 					uiimage = await handler.LoadImageAsync(source);
+
+					if (uiimage == null)
+						throw new InvalidOperationException("AppLinkEntry Thumbnail must be set to a valid source");
+
+					searchableAttributeSet.ThumbnailData = uiimage.AsPNG();
+					uiimage.Dispose();
 				}
 				catch (OperationCanceledException)
 				{
 					uiimage = null;
 				}
-				searchableAttributeSet.ThumbnailData = uiimage.AsPNG();
-				uiimage.Dispose();
 			}
 
 			return searchableAttributeSet;